Adjustable mounted roller.



-T.-W. DOOLITTLE, G. S. WINSOR & G. VERGASON.

ADJUSTABLE MOUNTED RQLLER. AIfPLIOATION FILED D3052, 1911.

1,02 1 ,5'79, Patented Mar. 26,1912.

WITNESSES 1%1: T0R5 COLUMBIA PLANDGRAPH IO-WASHINGTON n c UNITED STATESPATENT OFFICE.

TRACY W. DOOLITTLE, CLIFFORD S. WINSOR, AND CHARLES VERGASON, 0FBINGHAMTON', NEW YORK.

ADJUSTABLE MOUNTED ROLLER.

Specification of Letters ZPatent.

Patented Mar. 26, 1912.

To all whom it may concern."

Be it known that we, TRACY W. DOOLIT- TLE, CLIFFORD S. WVINsoR, andCHARLES VER- GASON, citizens of the United States, residing atBinghamt-on, in the county of Broome andSt-ate of New York, haveinvented certain new and useful Improvements in Adjust-able MountedRollers, of which the following is a specification.

Our invention relates to improvements in adjustable mounted rollers fordoor ways, and has for its object a light, strong and collapsible rollerdevice adjustable to different widths of doors, to be clamped inposition in the doorway for the purpose of conveying lumber and otherheavy commodities and materials through door ways or openings of cars orbuildings, and capable of being clamped in position in locked formationat any given height from the floor. Also capable of being clampedagainst any kind of door frame surface, whether round or flat or of woodor metal; and easily removed.

WVith these objects in view our invention consists of certain novelfeatures of construction and arrangement of parts as will be hereinafterfully described and pointed out in the claims, reference being had tothe accompanying drawing, in which Figure 1 is a front view of ourdevice in a locked position clamped in a doorway of a car. Fig. 2 is afront view of a detached part of our device. Fig. 3 is a front View of apart of our device in a partially locked position. Fig. 4 is a sectionalplan view of a part of our device and Fig. 5 is an end view of adetached part of our device.

The same reference characters denote like parts in each of the severalfigures of the drawings.

In carrying out our invention, we provide two hinged perforated bars, Aand B, between which passes a nut bolt, 2. Each bar has extending fromits rear end on the upper side, a curved lug 3 which when the bars arein locked hinged position hooks over the opposite bar. The outward endof each bar extends into a horizontal plate, horizontal to the sides ofthe bars, A and B. Through the bars are a series of perforations,preferably round, 5 and 6, with a central perforation, 7. Theseperforations are so distant from each other that the bars may have anadjustment to each other as line as inch adjustment between them.Through the surface of the flattened outer ends, constructed by a halfturn of the metal bars, A and B, extend the bolts 8 and 8. Turning onplate extension 4 and p-ivotally mounted thereon are the clampingmembers D and D respectively, having the projection flat faced lugs Dand D terminating in the circular roller shaped projection 10, 10,having a corrugated surface adapted to engage the surface of the doorpost and grip it and hold the locked roller device firmly in place inthe door. Mounted on the hinged bars A and B are the slidingly mountedjournal supports, C and C. In these journal supports are formed the slotE. When thus slidably mounted on the bars A and B the roller F, havingthe journals 9 and 9, is dropped into place in the bearings 10' and 10In operation we place the bars with nut bolt 2 so placed in theperforations as to enable the curved swivel ends of the bars to befirmly crowded against the sides of the door, and then the hinged barsupport is crowded down into place, the hooked clamps 3, 3 clamping overthe bars A and B respectively, the journal supports 0 and C beingmounted on the bars, the cam G mounted in the slot of the support iscrowded down into frictional contact against the bar and thus thesupport is firmly held to receive the roller. The roller being in placein the supports on the locked bars, the device is now clamped into placeready for use.

Having thus described our invention, what we claim as new and for whichwe desire Letters Patent is as follows:

1. In an adjustable mounted roller, two hinged perforated bars, a nutbolt passing between the same, curved lugs projecting from the upperside of the bars, bent in opposite directions, each capable of hookingover the opposite bar, a plate extension from the outer end of each barhorizontal to the sides of the bar, there being a graduated series ofperforations through the bars for receiving said nut bolt, clampingmembers pivot-ally mounted on said extension plates, and adapted toengage the surface of a door post, slotted journal supports havingbearings therein slidingly mounted on said bars, clamping means mountedin said supports,

a journaled roller adapted to and mounted" on said bearings.

2. In an adjustable mounted roller for doorways, tWo perforated barshinged upon a nut bolt passing between them, there being a series ofperforations through said bars, a curved lug projecting from the upperside of each of said bars, each lug bent in opposite directions, andadapted to hook over the opposite bar, a plate extension from the outerend of each bar, horizontal to the sides of the bar, clamping memberspivotally mounted on said extension plates, and adapted to engage thesurface of a door post; slotted journal supports having bearingstherein, slidingly mounted on said bars; means for clamping saidsupports to said bars at any given point, a journaled roller 15 adaptedto and mounted in said bearings.

In testimony whereof We have mixed our signatures in presence of tWoWitnesses.

TRACY W. DOOLITTLE. CLIFFORD S. WINSOR. CHARLES VERGASON. Witnesses:

E. M. HAUREY, S. A. VALENTINE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

